Polymerization catalyst, method of making and use therefor
    10.
    发明授权
    Polymerization catalyst, method of making and use therefor 失效
    聚合催化剂,其制备和使用方法

    公开(公告)号:US4681866A

    公开(公告)日:1987-07-21

    申请号:US887690

    申请日:1986-07-21

    IPC分类号: C08F4/78 C08F10/00

    CPC分类号: C08F10/00

    摘要: Polymerization catalyst consisting essentially of treated silica support and zerovalent chromium compound is provided, as well as process for preparation and polymerization process with the invention catalyst. Silica treatment involves contacting a predominantly silica-containing support with at least one compound selected from the group consisting of Group IIA oxide or compounds convertible to the oxide form, a Group VA or VB oxide or compounds convertible to the oxide form or sulfuric acid, and calcining prior to contacting the treated support with a zerovalent chromium compound, thereby producing an active polymerization catalyst.

    摘要翻译: 提供了基本上由处理的二氧化硅载体和零价铬化合物组成的聚合催化剂,以及本发明催化剂的制备和聚合方法。 二氧化硅处理包括使主要含二氧化硅的载体与至少一种选自IIA族氧化物或可转化为氧化物形式的化合物,VA族或VB族氧化物或可转化为氧化物形式或硫酸的化合物的化合物接触,以及 在将经处理的载体与零价铬化合物接触之前进行煅烧,从而制备活性聚合催化​​剂。